{"id":12161,"date":"2025-07-23T10:37:26","date_gmt":"2025-07-23T14:37:26","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/chancre\/"},"modified":"2025-07-23T10:37:26","modified_gmt":"2025-07-23T14:37:26","slug":"chancro","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/es\/glossary-term\/chancro\/","title":{"rendered":"Chancro"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[126],"glossary-product":[],"class_list":["post-12161","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urological-conditions"],"acf":{"gt-definition":"<p>Un chancro es una \u00falcera redonda, firme e indolora que se forma en el sitio de entrada de la bacteria <i>Treponema pallidum<\/i>, que representa la lesi\u00f3n primaria y la primera manifestaci\u00f3n cl\u00ednica de la infecci\u00f3n por s\u00edfilis.<sup>1<\/sup> El chancro suele aparecer aproximadamente 3 semanas (rango de 10 a 90 d\u00edas) despu\u00e9s de la exposici\u00f3n al agente infeccioso. organismo.<sup>2<\/sup> Comienza como una p\u00e1pula que se erosiona r\u00e1pidamente para formar una \u00falcera no exudativa de base limpia con bordes elevados e indurados que miden aproximadamente 1-2 cm de di\u00e1metro.<sup>3<\/sup> La lesi\u00f3n contiene numerosas espiroquetas, lo que la hace altamente contagiosa, y generalmente se acompa\u00f1a de linfadenopat\u00eda regional.<sup>4<\/sup> Sin tratamiento, el chancro sana espont\u00e1neamente en 3 a 6 semanas, dejando cicatrices m\u00ednimas o nulas, pero la infecci\u00f3n progresa a s\u00edfilis secundaria a medida que la bacteria se disemina por todo el cuerpo.<sup>5<\/sup><\/p>","gt-synonyms":"\u00dalcera sifil\u00edtica primaria, chancro duro, chancro hunteriano, lesi\u00f3n primaria sifil\u00edtica, sifiloma primario","gt-citation":"[1] Singh AE, Romanowski B. Syphilis: Review with Emphasis on Clinical, Epidemiologic, and Some Biologic Features. Clin Microbiol Rev. 1999 Apr;12(2):187-209. DOI: 10.1128\/cmr.12.2.187\n\n[2] Tiecco G, Degli Antoni M, Storti S, et al. A 2021 Update on Syphilis: Taking Stock from Pathogenesis to Vaccines. Microorganisms. 2021;9(11):2324. DOI: 10.3390\/microorganisms9112324\n\n[3] Read PJ, Donovan B. Clinical aspects of adult syphilis. Intern Med J. 2012;42(6):614-620. DOI: 10.1111\/j.1445-5994.2012.02814.x\n\n[4] Peeling RW, Mabey D, Kamb ML, et al. Syphilis. Nat Rev Dis Primers. 2017;3:17073. DOI: 10.1038\/nrdp.2017.73\n\n[5] Hook EW 3rd. Syphilis. Lancet. 2017;389(10078):1550-1557. DOI: 10.1016\/S0140-6736(16)32411-4","gt-clinical-context":"<p>Los chancros son cl\u00ednicamente significativos ya que representan la manifestaci\u00f3n inicial de la s\u00edfilis primaria, una infecci\u00f3n de transmisi\u00f3n sexual causada por la bacteria espiroqueta <i>Treponema pallidum<\/i>.<sup>1<\/sup> La lesi\u00f3n generalmente aparece en el sitio de la inoculaci\u00f3n, m\u00e1s com\u00fanmente en los genitales, pero tambi\u00e9n puede ocurrir en los labios, la lengua, la faringe, recto u otros sitios de contacto sexual.<sup>2<\/sup> En las mujeres, los chancros pueden desarrollarse en el cuello uterino o dentro de la vagina, y a menudo pasan desapercibidos debido a su naturaleza indolora y su ubicaci\u00f3n interna.<sup>3<\/sup><\/p>\n    \n    <p>Cl\u00ednicamente, los chancros son marcadores de diagn\u00f3stico importantes que deben impulsar pruebas y tratamiento inmediatos. La presencia de un chancro indica s\u00edfilis activa y altamente infecciosa que puede transmitirse f\u00e1cilmente a trav\u00e9s del contacto directo con la lesi\u00f3n.<sup>4<\/sup> La linfadenopat\u00eda regional, caracterizada por ganglios linf\u00e1ticos firmes, gomosos e indoloros, est\u00e1 presente en aproximadamente el 80 % de los pacientes con s\u00edfilis primaria.<sup>5<\/sup><\/p>\n    \n    <p>El diagn\u00f3stico generalmente se confirma mediante microscop\u00eda de campo oscuro del exudado de la lesi\u00f3n, que puede demostrar las caracter\u00edsticas espiroquetas m\u00f3viles en sacacorchos, o m\u00e1s com\u00fanmente mediante pruebas serol\u00f3gicas.<sup>1<\/sup> Es importante tener en cuenta que mientras el chancro se est\u00e1 desarrollando, las pruebas serol\u00f3gicas a\u00fan pueden ser negativas, lo que requiere repetir las pruebas si se sospecha cl\u00ednica. alto.<sup>4<\/sup><\/p>\n    \n    <p>El tratamiento de la s\u00edfilis primaria con chancro consiste en 2,4 millones de unidades de penicilina benzat\u00ednica administradas por v\u00eda intramuscular en una dosis \u00fanica.<sup>2<\/sup> El tratamiento temprano es crucial para prevenir la progresi\u00f3n a las etapas secundaria y terciaria de la s\u00edfilis, que puede provocar importantes enfermedades cardiovasculares, neurol\u00f3gicas y otras enfermedades sist\u00e9micas. complicaciones.<sup>3<\/sup> Para pacientes al\u00e9rgicos a la penicilina, los reg\u00edmenes alternativos incluyen doxiciclina o tetraciclina, aunque se consideran menos efectivos.<sup>5<\/sup><\/p>\n    \n    <p>Los proveedores de atenci\u00f3n m\u00e9dica deben mantener un alto \u00edndice de sospecha de s\u00edfilis en pacientes que presentan \u00falceras genitales, particularmente aquellas que son indoloras, ya que el diagn\u00f3stico y el tratamiento tempranos son esenciales para prevenir la transmisi\u00f3n y las complicaciones.<sup>1<\/sup><\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":104},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Chancro: Primary Syphilis Lesion - Definici\u00f3n M\u00e9dica<\/title>\n<meta name=\"description\" content=\"Un chancro es una \u00falcera indolora, el primer signo de infecci\u00f3n por s\u00edfilis. 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